Watch to learn more about TBI in kids. TBI is an injury caused by a blow, jolt, or penetrating object that disrupts normal functioning of the brain. Concussion and other types of TBI can seriously affect a child’s daily life. Brain injury can cause problems with speaking or understanding, movement or mobility, thinking or memory, and personality or mood. To learn more about TBI visit http://www.nichd.nih.gov/health/topics/tbi/conditioninfo/Pages/default.aspx